Double-acting pump



2 SheetsSheet 1..

(No Model.)

H. 0. STOUIEJEER. DOUBLE ACTING PUMP.

ill?! Patented Sept. 30, 1884 N. FETERs Plwlu-Lkbognphur. W-uhinglon.11cv (No Model.) 2 Sheets-Sheet 2.

H. O. STOUFPER.

DOUBLE ACTING PUMP.

No. 306,036. Patented Sept. 80, 1884.

Javenfor N. FEYER$ F'Mvl'rlhognpmr. Waihinglom ac.

NITED STATES HIRAM G. STOUFFER, OF CORTLAND, OHIO.

DOUBLE-ACTI NG PUMP.

SPECIFICATION forming part of Letters Patent No. 306,036, datedSeptember 30, 1884.

Application filed February 26, 1884. (No model.)

To all whom it may concern:

Be it known that I, HIRAM O. Sro'orrna, a citizen of the United States,residing at Cortland, in the county of Trumbull and State of Ohio, haveinvented new and useful Improvements in Double-Acting Pu mps, of whichthe following is a specification.

I have improved the double-acting submerged force-pump in which a valvedplunger operates to raise and discharge water through a hollowplunger-rod on both the up and down strokes of the plunger in a singlepump-barrel, andthe objects 05mg; improvements are to provide acontinuous inflow and discharge of water from a single pump-barrel by aconstruction having special regard to offectiveness, access for cleaningand repairs, and for easy working.

The improvement I have made in this construction of this kind of pumpwill be specifically pointed outin the claims.

Referring to the accompanying drawings, Figure 1. represents inelevation my improved pump suspended in a well; Fig. 2, a verticalsection of the pump, the double-valved plunger being shown on itsdownstroke; Fig. 3, a similar section, the valved plunger being shown onits upstroke; Fig. 4, a horizontal section through the side valve of theplunger. Fig. 5 shows a side view of the same; Fig. 6, details of thevalved plug; Fig. 7, a horizontal section of the hollow plunger-rod,taken through its top ports. Fig. 8 shows in side view the T-union ofthe discharge-pipe, and Fig. 9 a top view of the same. Fig. 10 shows theplunger-operating device, and Fig. 11 a section of the same.

The pump-barrel A has a foot-valve, a, opening inward, and preferablysecured by a screw-plug, b, as shown. Its upper end is closed by ascrew-plug, B, in which are formed the top inlet-ports, c, of thebarrel,which open into the well at the side of said plug, and areprovided with valves (1, adapted to open within the barrel. Thedischargepipe 0 screws into the upper end of this valved plug 13, andserves as the means for suspending the barrel in a submerged position inthe well, which. may be either driven, bored, or otherwise formed. Theplunger D is hollow, and has two valves, cf, thelower valve, c, beingadapted to open upward, and is carried by an open 7 screw-plug, 9,having a bottom ring, shoulder, or collar, 1', between which and thelower end of the plunger is clamped a double leather packing, h. Thisconstruction places the pack ing at the lower end of the plunger, andgives the advantage of securing it by the same screwplug which forms aseat for the valve 6, and affords facility for quickly and easilyremoving the packing when required. The valve f is arranged at one ofthe vertical sides of the plunger, which is made flat for that purpose,and opens inward above the valve 6, and the plunger is carried by ahollow plunger-rod, 11, through which the discharge from both valves iseffected from the barrel above and below the plunger into thedischargepipe C. This pipe is screwed into the upper end of the valvedplug B upon a packing, m, which packs the hollow plunger-rod whichpasses centrally throughsaid plug and terminates in the discharge-pipeabove the pump-barrel, and communicates with said discharge-pipe by theports a, which form the only communication of the dischargepipe with thepump-barrel. Above the ports a the hollow plunger-rod H terminates in asolid section, H, which passes up through the discharge-pi 'ie andthrough a stuffing-box, G, at the top of a T-union, E, and is connectedabove the latter to a crosshead, t, by a binding-screw, t", as in Fig.11, or by any suitable means. The cross-head t is mountedby trunnions orpivots it upon the upper ends of two-arms, K K, which stand on each sideof the T-union, and are pivoted at their lower ends to the ends of theforks or arms L of the handle M, the arms of which are pivoted at s toan extension, E", of the T- union, which projects from the latterbetween the arms L. This construction places the handle-pivot s on theside of the T-union oppo site to the discharge-spout I, which gives theadvantage of raising the plunger by depressing the handle, and thuslessen the labor in pumping. The flattening of the plunger D on one sidegives free access to its side valved opening, 1', from thebarrel-chamber above the plunger. The valve (Z is prefer. bly a leatherring secured to the plug B bya ring-guard, o, which serves to keep thevalve in proper position to be closed. The plunger is down in the normalcondition of the pump,and the barrel above the plunger fills with waterthrough the ports 0, and upon raising the plunger, the valves 0 61 beingclosed, the water is forced into the plunger through its side valve, f,and up the hollow plunger-rod, through the ports 0 into thedischarge-pipe, the water meanwhile filling the barrel below theplunger. The descent of the plunger opens the valves 0 (Z and closes theside valve, f, and forces the water up through the hollow plunger-rodand into the discharge-pipe.- Meanwhile the water enters the barrelthrough the ports 0.

Provision is made for operating the pump by a windmill by connecting thepitman-rod Z of the latter with the cross-head t, by means of abinding-screw, .2, as shown in Fig. 1]., the said pitlnan-rod beingclamped in a socket in line with the rod H.

' The pump can be used for driven, bored, and oil wells.

I claim 1. The combination of the barrel A and the top plug, 13, havingan interior screw, an i11- terior-formed seat for the packing m, ports0, opening at the side, and the valve (1 with the discharge-pipe,avalved plunger,and a hollow plunger-rod, all constructed as shown andde scribed.

2'. The plunger 1'), having the bottom screwcollared plug, i g, thepacking h, the bottom valve, 6, and a flat vertical side having thevalved p ort r 7", combined with the pump-barrel A, a valved plug at thetop thereof, a hollow plunger-rod, and the discharge-pipe 0, allconstructed and arranged as shown and described.

3. The combination, with the pump-barrel having the dischargepipc G, anda valved plunger, of a plunger-operating device consisting of thecross-head t, the pivoted arms K K, and the handle M, having arms L,pivotedto the union E at s and to said arms K, as shown, and for thepurpose described.

In testimony whereof I have hereunto set my hand .in the presence of twosubscribing witnesses.

HIRAM O. STOUFFER.-

\Vitnesses:

A. E. H. JOHNSON, J. W. HAMILTON J orrNsoN.

